Dull pain in neck shoulders and under chin, it is really not a pain more of pressure, could it be tmj, i have been stressed? also behind my ear hurts

Possibly: But can also be from one of many types of infections or from neurologic problems. Start with your Dentist. After examination your Dentist can treat/refer you. TMJ problems are usually chronic, infections can quickly become acute. Call now for examination.

TMD: Actually the proper term is TMD or Temporomandibular Dysfunction. This involves your joints and the neuromuscular aspect of your jaw function. You need to see a qualified Dentist or Oral & Maxillofacial Surgeon for a proper evaluation and diagnosis.

TMJ-TMD : Temporo-Mandibular Disorder is the second most frequent cause of orofacial pain after dental pain. The common symptom are: headache, jaw pain, neck pain, eye pain, earache and toothache. Proper diagnosis is the key for the successful treatment. Rec.: orofacial pain specialist for evaluation and treatment.

Possible: Possible. See TMJe expert for evaluation. Any dentist can be a TMJ expert with the proper training and experience. Most commonly, oral surgeons, prosthodontists, and orofacial pain specialists. Ask your MD, your dentist and your dental society for referrals.